CN105619716B - needle valve type hot runner system - Google Patents
needle valve type hot runner system Download PDFInfo
- Publication number
- CN105619716B CN105619716B CN201610154431.2A CN201610154431A CN105619716B CN 105619716 B CN105619716 B CN 105619716B CN 201610154431 A CN201610154431 A CN 201610154431A CN 105619716 B CN105619716 B CN 105619716B
- Authority
- CN
- China
- Prior art keywords
- needle
- guide sleeve
- needle guide
- main body
- mold insert
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 26
- 239000002826 coolant Substances 0.000 claims description 6
- 230000005489 elastic deformation Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 26
- 239000004568 cement Substances 0.000 abstract description 21
- 238000005516 engineering process Methods 0.000 abstract description 8
- 239000011241 protective layer Substances 0.000 abstract description 6
- 238000001746 injection moulding Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 239000000155 melt Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000005574 cross-species transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
- B29C45/2806—Closure devices therefor consisting of needle valve systems
Abstract
The invention belongs to hot flow path injection molding technology field more particularly to a kind of needle valve type hot runner systems.It solves the technical problems such as melt plastic cement material spilling in needle-valve of the existing technology.This needle valve type hot runner system, including flow distribution plate, opposite needle guide sleeve and nozzle are installed on flow distribution plate, needle is arranged in needle guide sleeve and nozzle and needle one end and is pierced by needle guide sleeve and with the needle driver of the needle front and rear reciprocating movement in an axial direction can be driven to be connected, tubular mold insert main body is arranged on the needle guide sleeve, the mold insert main body is equipped at least a piece of heat conductivity vane that can be in contact with needle driver.Compared with prior art, the invention has the advantages that：Make to form heat transmission between needle guide sleeve and actuator piston; so as to effectively reduce needle guide sleeve temperature, increase melt plastic cement tack of materials, protective layer is formed on needle and needle guide sleeve side wall; leak adhesive is effectively prevent, extends the service life of needle and needle guide sleeve.
Description
Technical field
The invention belongs to hot flow path injection molding technology field more particularly to a kind of needle valve type hot runner systems.
Background technology
In existing hot flow path injection molding technology, the injection of melt plastic cement material is generally carried out using needle-valve, and the prior art
Needle valve structure include needle and be oriented to the needle guide sleeve that axially moves of needle and needle driver.And it is being passed through melting modeling
After glue material, the temperature raising of entire needle-valve due to thermal expansion, can be formed between needle guide sleeve and needle at high temperature
Tiny gap, melt plastic cement material may be overflowed from gap.Usually prevent melt plastic cement material overflow method be
Reduce the gap of needle and needle guide sleeve during processing, and gap is necessarily less than 0.002mm.And so tiny gap, for
It can not almost be completed for existing processing technology.Or so that melt plastic cement material by the way of needle guide sleeve is lengthened
It needs to flow through longer path, but this mode is not compact enough there is structure, the technical problems such as of high cost.It is existing in order to solve
Technology there are the problem of, people have carried out long-term exploration, it is proposed that miscellaneous solution.
For example, Chinese patent literature discloses a kind of cylinder with needle-valve set cooling structure and the hot-fluid with the cylinder
Road system, [application number：201420785113.2], cylinder include cylinder block and cylinder head, cylinder block include cylinder block ontology and
Needle-valve covers cooling structure, and needle-valve set cooling structure is detachably arranged at the one end of cylinder block ontology far from cylinder head, cylinder block sheet
The first inner chamber and second inner chamber being connected are respectively arranged in body and needle-valve set cooling structure, second inner chamber is far from cylinder block sheet
One end of body, in setting is connected, is provided with piston and needle-valve, one end of needle-valve extends to piston with the outside of cylinder in cylinder block
Interior, the other end passes through needle-valve set cooling structure to extend to the outside of cylinder, and piston has a piston boss, and piston boss will be in first
Chamber is divided into upper chamber and lower chambers, and at least one cold air path is provided in the side wall of needle-valve set cooling structure, cold air path
Both ends communicate respectively with lower chambers and second inner chamber.
Above-mentioned scheme improves the subproblem of the prior art to a certain extent, and still, the program also at least exists
Following defect：Structure is complex, and the cooling for system, the cooling effect of particularly needle-valve guide sleeve is not ideal enough, melts
Melt plastic material to remain unchanged easy side leakage or spilling.On the other hand, easily cause service life shorter due to abrasion.
Invention content
Regarding the issue above, the present invention provides a kind of needle valve for preventing the side leakage of melt plastic cement material or spilling
Hot runner system.
In order to achieve the above objectives, present invention employs following technical proposals：A kind of needle valve type hot runner system, including shunting
Plate is installed with opposite needle guide sleeve and nozzle on flow distribution plate, and needle is arranged in needle guide sleeve and nozzle and needle one
End is pierced by needle guide sleeve and with the needle driver of the needle front and rear reciprocating movement in an axial direction can be driven to be connected, the needle
Tubular mold insert main body is arranged on guide sleeve, the mold insert main body can be in contact equipped at least a piece of with needle driver
Heat conductivity vane.When being molded beginning, flow distribution plate high-temperature heating, therefore the temperature raising of whole system.And needle guide sleeve passes through
Heat conductivity vane is contacted with the formation of needle driver, while the heat also bridged between the two is transmitted, and heat conductivity vane is hot passes
The solid dielectric passed, therefore the material of the heat conductivity vane requires to be necessary for the preferable material of heat conductivility, could make this in time
Reach thermal balance between needle guide sleeve and needle driver, rapidly distribute the heat on needle guide sleeve, make the reduction of its temperature.
When melt plastic cement material passes through the gap generated when expanding with heat and contract with cold between needle guide sleeve and needle, melt plastic cement tack of materials
Increase, protective layer is formed on needle side wall and needle guide sleeve inner wall.The protective layer can effectively prevent melt plastic cement in needle-valve
The side leakage of material or spillover, and preferably extend the service life of needle and needle guide sleeve.
In above-mentioned needle valve type hot runner system, the heat conductivity vane has elasticity and when mold insert main body is sheathed on valve
When on needle guide sleeve, elastic deformation occurs under the action of needle driver for the heat conductivity vane so as to which heat conductivity vane be made always
It is fitted and connected with the formation of needle driver.
In above-mentioned needle valve type hot runner system, the heat conductivity vane includes being tilted towards from mold insert main body lower end outside upper
The rake of Fang Yanshen has horizontal-extending horizontal part, and the horizontal part can drive with needle in the upper end of rake
Device fits.
In above-mentioned needle valve type hot runner system, the outer end of the rake, which has, is tilted towards turning over for outer lower side extension
Along portion.
In above-mentioned needle valve type hot runner system, the heat conductivity vane is connected as a single entity structure with mold insert main body, institute
The quantity for the heat conductivity vane stated is no less than two panels and is uniformly distributed in circumferencial direction.
In above-mentioned needle valve type hot runner system, the mold insert main body is interference fitted with needle guide sleeve, the valve
Needle guide sleeve is equipped with ring-shaped step, and the mold insert main body lower end has the annular that press fit can be formed with the ring-shaped step
Thermal conductive surface.
In above-mentioned needle valve type hot runner system, the lower end of the needle guide sleeve has annular retaining ring, point
Guide sleeve briquetting is threaded in flowing plate, the guide sleeve briquetting lower end is pressed on annular retaining ring.
In above-mentioned needle valve type hot runner system, the needle driver includes cylinder body and the work being arranged in cylinder body
Plug, the needle are connected with piston, and the cylinder body is equipped with the cooling structure for cooling medium transmission.
In above-mentioned needle valve type hot runner system, the cooling structure include being opened in cooling pipe on cylinder body and
The cooling pipe is connected with external cooling medium circulation system.
In above-mentioned needle valve type hot runner system, the inner wall of needle guide sleeve upper surface is closed in the needle guide sleeve upper end
With annular groove, the notch of the annular groove is towards needle outer wall.
Compared with prior art, it is the advantages of this needle valve type hot runner system：Pass through the bridge joint of heat conductivity vane so that
Heat is formed between needle guide sleeve and needle driver to transmit.Therefore the heat on needle guide sleeve is in a manner that contact heat is transmitted
It is transmitted on needle driver, so as to be effectively reduced the temperature of needle guide sleeve.Melt plastic cement material is led by needle and needle
During the gap of set, temperature reduces, and viscosity increases, and protective layer can be formed on needle side wall and needle guide sleeve inner wall, so as to have
It avoids to effect melt plastic cement material in needle-valve that side leakage or spillover occurs, while extends the use longevity of needle and needle guide sleeve
Life.
Description of the drawings
Fig. 1 is schematic cross-sectional view provided by the invention.
Fig. 2 is part-structure schematic cross-sectional view provided by the invention.
Fig. 3 is mold insert agent structure schematic diagram provided by the invention.
Fig. 4 is guiding sleeve structure of valve needle schematic diagram provided by the invention.
Fig. 5 is the schematic cross-sectional view that mold insert main body provided by the invention is assembled on needle guide sleeve.
Fig. 6 is guide sleeve briquette structure schematic diagram provided by the invention.
Fig. 7 is part-structure schematic cross-sectional view provided by the invention.
In figure, mold insert main body 1, mold insert main body inner wall 1a, heat conductivity vane 2, flow distribution plate 3, rake 4, horizontal part 5, annular
Thermal conductive surface 6, needle guide sleeve 7, needle guide sleeve outer wall epimere 7a, annular groove 7c, needle guide sleeve inner wall 7d, nozzle 8, turn edge portion 9, valve
Needle 10, needle driver 11, piston 12, cylinder body 13, annular retaining ring 14, ring-shaped step 15, guide sleeve briquetting 16, guide sleeve briquetting bottom
Face 16b, liquid-transport pipe-line 17, cooling pipe 18, gap 19.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
As shown in figs. 1-7, a kind of needle valve type hot runner system including flow distribution plate 3, is installed with opposite on flow distribution plate 3
Needle guide sleeve 7 and nozzle 8, needle 10 is arranged in needle guide sleeve 7 and nozzle 8 and 10 one end of needle is pierced by needle guide sleeve 7 simultaneously
It is connected with the needle driver 11 that can drive the needle 10 front and rear reciprocating movement in an axial direction, is arranged on the needle guide sleeve 7
There is tubular mold insert main body 1, the mold insert main body 1 is equipped at least a piece of heat conduction that can be in contact with needle driver 11
Wing plate 2.Heat conductivity vane 2 becomes the solid dielectric of heat transmission, therefore the heat conductivity vane 2 is made of the stronger material of thermal conductivity,
It could make to reach thermal balance between the rwo in time, so as to rapidly by the heat absorption on needle guide sleeve 7, reduce needle and lead
The temperature of set 7.Therefore when gap of the melt plastic cement material by needle guide sleeve 7 and needle 10, viscosity is increased in needle
Protective layer is formed on 10 outer walls and needle guide sleeve inner wall 7d, is effectively prevented from the generation of leak adhesive phenomenon, and extend needle 10 and needle
The service life of guide sleeve 7.In the present embodiment, the inner wall that 7 upper surface of needle guide sleeve is closed in 7 upper end of needle guide sleeve has annular groove
The notch of 7c, the annular groove 7c are towards 10 outer wall of needle.Annular groove 7c have the function of accommodate melt plastic cement material, and by
The melt plastic cement material in annular groove 7c is contained in since the cooling effect of the mold insert main body 1 in 7 outside of needle guide sleeve can be real in time
Existing temperature reduces, so as to avoid leaking out.That is annular groove 7c has certain cushioning effect.
As shown in Fig. 2, the heat conductivity vane 2 has elasticity, and when mold insert main body 1 is sheathed on needle guide sleeve 7, institute
Elastic deformation occurs under the action of needle driver 11 for the heat conductivity vane 2 stated so as to make heat conductivity vane 2 that can be driven always with needle
The dynamic formation of device 11 is fitted and connected.The heat conductivity vane 2 of elasticity can increase the contact force of heat conductivity vane 2 and needle driver 11, carry
The stability of its high contact prevents from driving because vibration or displacement cause heat conductivity vane 2 to leave needle in needle 11 operation of driver
Dynamic device 11 and interrupt the heat formed between both and transmit, it is made preferably to keep contacting to ensure duration that heat is transmitted.
Further, as in Figure 3-5, the needle guide sleeve 7 is equipped with ring-shaped step 15, the mold insert main body 1
Form interference fit between needle guide sleeve 7, thus heat can uniformly and rapidly mold insert main body 1 and needle guide sleeve 7 it
Between formed transmit, increase mutual contact area, substantially increase heat transmission efficiency.Under the mold insert main body 1
End can either increase mold insert master with the annular thermal conductive surface 6 that press fit can be formed with the ring-shaped step 15, ring-shaped step 15
Contact area between body 1 and needle guide sleeve 7 improves the efficiency that its heat is transmitted, and mold insert main body 1 can be made to be set in needle and led
On set 7 and play the role of limiting its height.
The concrete structure of the mold insert main body 1 is illustrated in figure 3, the heat conductivity vane 2 includes inclining from 1 lower end of mold insert main body
The rake 4 of oblique outer top extension, has horizontal-extending horizontal part 5, and the horizontal part 5 in the upper end of rake 4
It can fit with needle driver 11.The outer end of the rake 4 has the portion 9 that turns edge for being tilted towards outer lower side extension.
As a preferred option, the heat conductivity vane 2 is connected as a single entity structure with mold insert main body 1, the heat conduction wing
The quantity of plate 2 is no less than two panels and is uniformly distributed in circumferencial direction.Increase the quantity most directly effect i.e. increase of heat conductivity vane 2
What heat was transmitted is in direct contact area.Heat conductivity vane 2 is uniformly distributed in circumferencial direction, and the heat in all directions can be made to transmit more
It is uniform, the side leakage spillover of melt plastic cement material occurs in certain side caused by avoiding the occurrence of both sides non-uniform temperature.
In the present embodiment, the lower end of the needle guide sleeve 7 has annular retaining ring 14, screw thread on the flow distribution plate 3
Guide sleeve briquetting 16 is connected with, 16 lower end of guide sleeve briquetting is pressed on annular retaining ring 14.As can be seen from Figure 5, needle is led
Set 7 is fixed on flow distribution plate by guide sleeve briquetting 16, wherein the annular retaining ring 14 on needle guide sleeve 7 and guide sleeve briquetting bottom surface
It is contacted in the form of plane external pressure between 16b.Using being threadedly coupled between guide sleeve briquetting 16 and flow distribution plate 3, dismounting or assembling are more
It is convenient.
As shown in Fig. 2, the needle driver 11 includes cylinder body 13 and the piston 12 being arranged in cylinder body 13, it is described
Needle 10 is connected with piston 12, and the cylinder body 13 is equipped with the cooling structure for cooling medium transmission.
Specifically, needle driver 11 herein is hydraulic test, and cylinder body 13 is pressure cylinder in figure, is contained in cylinder body 13
Pressure fluid, and 17 unicom of liquid-transport pipe-line in figure cylinder body 13 and external liquid storage equipment.By liquid-transport pipe-line 17 to cylinder body
It is injected in 13 or extracts pressure fluid out, so as to change the hydraulic pressure in cylinder body 13, the movement of axial reciprocating is carried out with piston 12.It is cold
But structure includes the cooling pipe 18 being opened on cylinder body 13 and the cooling pipe 18 and external cooling medium circulation system
System is connected.Cooling medium is passed through into cooling pipe 18, the heat on Absorption of Medium needle driver 11 is cooled down, so as to reduce valve
The temperature of needle drivers 11.
Operation principle：When melt plastic cement material is injected into the needle-valve, by changing the pressure size in cylinder body 13, from
And piston 12 is pushed to make the movement of axial reciprocating, needle 10 is finally driven to make axial reciprocating movement, reaches the mesh of hot flow path injection
's.And during the work time, because of the high temperature properties of melt plastic cement material so that the temperature of needle 10 and needle guide sleeve 7 increases,
Due to thermal expansion, at high temperature, slight gap can be formed between needle guide sleeve 7 and needle 10, and melt plastic cement material
It may be overflowed from gap.So the present invention devises mold insert main body 1 as heat conducting medium so that needle driver 11 exists
Dynamic needle guide sleeve 7 can be promoted to cool down during cooling by way of heat transfer.Concrete mode：Annular retaining ring on needle guide sleeve 7
It is contacted in the form of plane external pressure between 14 and guide sleeve briquetting bottom surface 16b.It is threadedly coupled between guide sleeve briquetting 16 and flow distribution plate 3.
Gap is present in Fig. 6 between needle 10 and needle guide sleeve inner wall 7d.Mold insert main body 1 is sleeved on needle guide sleeve 7, wherein inlaying
It is interference fitted between part main body inner wall 1a and needle guide sleeve outer wall epimere 7a.Heat conductivity vane 2 is sent out after being contacted with needle driver 11
Raw elastic deformation, heat conductivity vane 2 can be contacted with needle driver 11 always as spring, since needle driver 11 is equipped with
Cooling structure, therefore its temperature is lower than the temperature of needle guide sleeve 7, mold insert main body 1 as medium by way of heat transfer by valve
Partial heat on needle guide sleeve 7 is conducted to needle driver 11, so as to reduce the temperature of needle guide sleeve 7.Thus when in needle-valve
Melt plastic cement material increased by viscosity when the gap of 10 side wall of needle and needle guide sleeve inner wall 7d, it is made to be not easy from gap
It overflows except hot runner system.Meanwhile the melt plastic cement material after viscosity increase can be in 10 outer wall of needle and needle guide sleeve inner wall
Protective layer is formed on 7d, the service life of needle 10 and needle guide sleeve 7 can be extended.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can do various modifications or additions to described specific embodiment or replace in a similar way
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although mold insert main body 1, mold insert main body inner wall 1a, heat conductivity vane 2, flow distribution plate 3, rake is used more herein
4th, horizontal part 5, annular thermal conductive surface 6, needle guide sleeve 7, needle guide sleeve outer wall epimere 7a, annular groove 7c, needle guide sleeve inner wall 7d, spray
Mouth 8, the portion 9 that turns edge, needle 10, needle driver 11, piston 12, cylinder body 13, annular retaining ring 14, ring-shaped step 15, guide sleeve briquetting
16th, the terms such as guide sleeve briquetting bottom surface 16b, liquid-transport pipe-line 17, cooling pipe 18, gap 19, but be not precluded and use other arts
The possibility of language.The use of these items is only for more easily describe and explain the essence of the present invention；It is construed as
Any one of the additional limitations is all disagreed with spirit of the present invention.
Claims (7)
1. a kind of needle valve type hot runner system, which is characterized in that this system includes flow distribution plate (3), is installed on flow distribution plate (3)
Opposite needle guide sleeve (7) and nozzle (8), needle (10) is arranged in needle guide sleeve (7) and nozzle (8) and needle (10) one
End is pierced by needle guide sleeve (7) and needle driver (11) phase with that can drive the needle (10) front and rear reciprocating movement in an axial direction
Even, tubular mold insert main body (1) is arranged on the needle guide sleeve (7), the mold insert main body (1) is equipped at least one
The heat conductivity vane (2) that piece can be in contact with needle driver (11), the mold insert main body (1) are matched with needle guide sleeve (7) interference
It closes, the needle guide sleeve (7) is equipped with ring-shaped step (15), and described mold insert main body (1) lower end has can be with the annular
Step (15) forms the annular thermal conductive surface (6) of press fit, and the needle driver (11) including cylinder body (13) and is arranged on
Piston (12) in cylinder body (13), the needle (10) are connected with piston (12), and the cylinder body (13) is equipped with for cooling down
The cooling structure of medium transmission, the cooling structure include being opened in cooling pipe (18) on cylinder body (13) and described
Cooling pipe (18) is connected with external cooling medium circulation system.
2. needle valve type hot runner system according to claim 1, which is characterized in that the heat conductivity vane (2) has bullet
Property and when mold insert main body (1) is sheathed on needle guide sleeve (7), the heat conductivity vane (2) is in the work of needle driver (11)
It is fitted and connected with lower generation elastic deformation so as to make heat conductivity vane (2) that can be formed always with needle driver (11).
3. needle valve type hot runner system according to claim 2, which is characterized in that the heat conductivity vane (2) is including certainly
Mold insert main body (1) lower end is tilted towards the rake (4) of outer top extension, has horizontal-extending water in the upper end of rake (4)
Flat portion (5), and the horizontal part (5) can fit with needle driver (11).
4. needle valve type hot runner system according to claim 3, which is characterized in that the outer end tool of the rake (4)
There is the portion that turns edge (9) for being tilted towards outer lower side extension.
5. according to the needle valve type hot runner system described in claims 1 or 2 or 3 or 4, which is characterized in that the heat conductivity vane
(2) it is connected as a single entity structure with mold insert main body (1), the quantity of the heat conductivity vane (2) is no less than two panels and in circumferencial direction
It is uniformly distributed.
6. needle valve type hot runner system according to claim 1, which is characterized in that the lower end of the needle guide sleeve (7)
With annular retaining ring (14), it is threaded with guide sleeve briquetting (16) on the flow distribution plate (3), under the guide sleeve briquetting (16)
Side pressure is on annular retaining ring (14).
7. according to the needle valve type hot runner system described in claims 1 or 2 or 3 or 4, which is characterized in that the needle guide sleeve
(7) inner wall that needle guide sleeve (7) upper surface is closed in upper end has an annular groove (7c), and the notch of the annular groove (7c) is towards valve
Needle (10) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610154431.2A CN105619716B (en) | 2016-03-17 | 2016-03-17 | needle valve type hot runner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610154431.2A CN105619716B (en) | 2016-03-17 | 2016-03-17 | needle valve type hot runner system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105619716A CN105619716A (en) | 2016-06-01 |
| CN105619716B true CN105619716B (en) | 2018-06-26 |
Family
ID=56035240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610154431.2A Active CN105619716B (en) | 2016-03-17 | 2016-03-17 | needle valve type hot runner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105619716B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962743A (en) * | 2016-12-19 | 2018-04-27 | 上海默作精密仪器有限公司 | The passive pin valve of runner is equipped with needle |
| CN109693345A (en) * | 2017-10-23 | 2019-04-30 | 苏州汉斯精密模具配件有限公司 | A kind of cylinder cooling structure of needle valve type hot runner |
| CN109483821A (en) * | 2018-12-27 | 2019-03-19 | 柳道万和(苏州)热流道系统有限公司 | Needle sealing set and the hot runner system with it |
| CN109571876B (en) * | 2019-01-25 | 2024-02-20 | 阳江恒茂包装制品有限公司 | Injection rings integral type injection mold |
| CN111660509A (en) * | 2019-03-05 | 2020-09-15 | 苏州斯曼迪热流道系统有限公司 | Valve needle type hot runner system |
| CN115401874B (en) * | 2022-11-01 | 2023-03-24 | 天津汇泽精密塑料制品有限责任公司 | Needle valve hot runner system and injection mold |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006137163A (en) * | 2004-11-15 | 2006-06-01 | Nanjo Sobi Kogyo Kk | Apparatus for manufacturing molded product |
| US20080171100A1 (en) * | 2007-01-17 | 2008-07-17 | Husky Injection Molding Systems Ltd. | Constant-Force Belleville Spring and an Injection Molding Melt-Conveyance System Incorporating such a Spring as a Seal Spring |
| CN102770257B (en) * | 2010-03-25 | 2015-11-25 | 圣万提注塑工业有限公司 | Actuator mount system |
| CN202702522U (en) * | 2012-06-11 | 2013-01-30 | 上海占瑞模具设备有限公司 | Hot runner guide sleeve |
| CN202826281U (en) * | 2012-10-30 | 2013-03-27 | 英格斯模具制造（中国）有限公司 | Valve needle drive device with heat radiating function |
| CN205439111U (en) * | 2016-03-17 | 2016-08-10 | 英格斯模具制造（中国）有限公司 | Needle valve type hot runner system |
-
2016
- 2016-03-17 CN CN201610154431.2A patent/CN105619716B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105619716A (en) | 2016-06-01 |
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